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Important DPM terms
Important DPM terms
In this section you will learn some important terms used commonly in DPM. You
will need to understand these terms as you begin to administer DPM on a regular
basis. You can read the full list of terms at this site:
http://technet.microsoft.com/en-us/l ibrary/bb795543.aspx
We group the terms in a way that each group relates to an area of DPM. The
following are some important terms:
Bare metal recovery : This is a restore technique that allows one to restore a
complete system onto bare metal, without any requirements, to the previous
hardware. This allows restoring to dissimilar hardware.
Change journal : A feature that tracks changes to NTFS (New Technology
File System) volumes, including additions, deletions, and modifications.
The change journal exists on the volume as a sparse file. Sparse files are
used to make disk space usage more efficient in NTFS. A sparse file allocates
disk space only when it is needed. This allows files to be created even when
there is insufficient space on a hard drive. These files contain zeroes instead
of disk blocks.
Consistency check : The process by which DPM checks for and corrects
inconsistencies between a protected data source and its replica. A
consistency check is only performed when normal mechanisms for
recording changes to protected data, and for applying those changes to
replicas, have been interrupted.
Express full backup : A synchronization operation in which the protection
agent transfers a snapshot of all the blocks that have changed since the
previous express full backup (or initial replica creation, for the first express
full backup).
Shadow copy : A point-in-time copy of files and folders that is stored on the
DPM server. Shadow copies are sometimes referred to as snapshots .
Shadow copy client software : Client software that enables an end-user to
independently recover data by retrieving a shadow copy.
 
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